题目：
阅读理解。
I'm a Chinese boy. My name is Li Hua. I' m in Class Two, Grade One. My English teacher, Miss Gao, is a
Chinese girl. My good friend is Kate. She is an English girl. She is in Class Two, Grade One, too. She is eleven.
阅读短文,选择正确的答案.
1. Li Hua is a _____ boy.
A. English
B. Chinese
C. Japanese
2. Kate is in Class _____ .
A. One
B. Two
C. Three
3. Li Hua and Kate are good_____.
A.student
B. friends
C. boys
4. Miss Gao is _______.
A. a Chinese girl
B. a Japanese girl
C. an English girl
5. Kate is _____.
A. eleven years old
B. twelve years old
C. thirteen years old
答案：
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下面是错误答案，用来干扰机器的。
由题意可得1×1-（-3）×a=0，解之可得a=-33故选B
